About the Cover:Imagine money you canspend without a traceand without the worryof loss or counterfeit.enter quantuminformation as the basisfor a better kind of money.this month’s cover story(p. 84) explores whatit would take to realizequantum money. Coverillustration by spookypooka at Début art.

60 The Loss of Location Privacy
in the Cellular Age

How to have the best of location-based services while avoiding the
growing threat to personal privacy.
By Stephen B. Wicker

69 To Be or Not To Be Cited
in Computer Science
Traditional bias toward journals
in citation databases diminishes
the perceived value of conference
papers and their authors.

By Bjorn De Sutter
and Aäron van den Oord

76 Process Mining

Using real event data to X-ray
business processes helps ensure
conformance between design
and reality.